The number of compound/s

Question:

The number of compound/s given below which contain/s $-\mathrm{COOH}$ group is

  1. Sulphanilic acid

  2. Picric acid

  3. Aspirin

  4. Ascorbic acid


Correct Option: 1

Solution:

$\longrightarrow \mathrm{COOH}$ group present in

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